condition mean min max 4 h after light 0.0 0.0 0.0 8 h after light 0.4318375 0.0 0.863675 12 h after light 0.393797 0.0 0.787594 4 h after dark 1.0375685 0.698347 1.37679 8 h after dark 0.172487 0.0 0.344974 12 h after dark 0.0 0.0 0.0